M42: Orion Nebula
M42: Orion Nebula |
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M42: Orion Nebula in Narrowband |
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Object Data |
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| Object type: | Emission Nebula | |
| Size: | About 24 light years across | |
| Magnitude: | 4 | |
| Constellation: | Orion | |
| Distance: | 1,344 light years | |
| Notes: | ||
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Exposure Data |
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| Date: | 11/24-11/25/21 | |
| Location: | Backyard Observatory, Carlsbad, CA | |
| Telescope: | Williams Optics Star 71, 5-element. 350mm at f/4.9 | |
| Camera: | QSI 683 wgs with Astronomik Ha and SII (6nm) and Antila OIII (3nm) emission-line filters. | |
| Mount: | Losmandy G-11 Gemini I | |
| Exposure time: | Ha:10 x 15 min; SII 7 x 15 min; OIII 8 x 15 min | |
| Exposure time total: | 6.25 hrs | |
| Notes: | Color mapped by assigning OIII to red; Ha to green, and SIi to blue. A single 15-minute SII subexposure was added as a lum layer to bring out the details in the trapezium. FOV = 1.61 x 2.87 degrees Image Scale: 3.21"/pixel |
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